Trigonometry World Problem - Angle of Elevation

6. From the top of a building 60 ft. high the angle of elevation of the top of a communications tower is 13.8 degrees . From the bottom of the building the angle of elevation of the top of the tower is 35.2 degrees. Find the Height of the tower. Also, determine the distance from the building to the tower

Ok about the sketch part, I need help on it especially on the part: From the top of a building 60 ft. high the angle of elevation of the top of a communications tower is 13.8 degrees argh its hard to be a math newbie